complex spin

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• Complex spin structure — In mathematics a complex spin group Spin C ( n ) is a generalized form of a spin group. Although not all manifolds admit a spin group, all 4 manifolds admit a complex spin group.Scorpan, A., 2005 The Wild World of 4 Manifolds] The complex spin… …   Wikipedia

• Spin representation — In mathematics, the spin representations are particular projective representations of the orthogonal or special orthogonal groups in arbitrary dimension and signature (i.e., including indefinite orthogonal groups). More precisely, they are… …   Wikipedia

• Spin group — In mathematics the spin group Spin( n ) is the double cover of the special orthogonal group SO( n ), such that there exists a short exact sequence of Lie groups:1 o mathbb{Z} 2 o operatorname{Spin}(n) o operatorname{SO}(n) o 1.For n gt; 2, Spin(… …   Wikipedia

• Spin-weighted spherical harmonics — are generalizations of the standard spherical harmonics and like the usual spherical harmonics are complex functions on the sphere. These harmonics are typically denoted by {} sY {lm}, where s is the spin weight , and l and m are akin to the… …   Wikipedia

• Spin City — Season 1 intertitle Format Sitcom Created by Gary David Goldberg Bill Lawrence …   Wikipedia

• spin label — n a chemical species (as a free radical or metal complex) that has an unpaired electron and that is introduced into a molecule so that the molecule can be investigated using electron spin resonance spin la·beled or spin la·belled adj spin… …   Medical dictionary

• Spin-lattice relaxation time — Spin lattice relaxation time, known as T1, is a time constant in Nuclear Magnetic Resonance and Magnetic Resonance Imaging. It is named in contrast to T2, the spin spin relaxation time.T1 characterizes the rate at which the longitudinal Mz… …   Wikipedia

• Spin structure — In differential geometry, a spin structure on an orientable Riemannian manifold allows one to define associated spinor bundles, giving rise to the notion of a spinor in differential geometry. Spin structures have wide applications to mathematical …   Wikipedia

• Complex (chemistry) — The term complex in chemistry is usually used to describe molecules or ensembles formed by the combination of ligands and metal ions. Originally, a complex implied a reversible association of molecules, atoms, or ions through weak chemical bonds …   Wikipedia

• Spin (physics) — This article is about spin in quantum mechanics. For rotation in classical mechanics, see angular momentum. In quantum mechanics and particle physics, spin is a fundamental characteristic property of elementary particles, composite particles… …   Wikipedia

• Spin glass — A spin glass is a disordered material exhibiting high magnetic frustration. The origin of the behavior can be either a disordered structure (such as that of a conventional, chemical glass) or a disordered magnetic doping in an otherwise regular… …   Wikipedia